test/jdk/jdk/jfr/event/allocation/TestObjectAllocationSampleEventThrottling.java

@@ -51,12 +51,13 @@
  
  public class TestObjectAllocationSampleEventThrottling {
      private static final String EVENT_NAME = EventNames.ObjectAllocationSample;
  
      private static final Boolean COMPRESSED_CLASS_PTRS = WhiteBox.getWhiteBox().getBooleanVMFlag("UseCompressedClassPointers");
+     private static final Boolean COMPACT_HEADERS = WhiteBox.getWhiteBox().getBooleanVMFlag("UseCompactObjectHeaders");
  
-     private static final int BYTE_ARRAY_OVERHEAD = (Platform.is64bit() && !COMPRESSED_CLASS_PTRS) ? 24 : 16;
+     private static final int BYTE_ARRAY_OVERHEAD = COMPACT_HEADERS ? 12 : ((Platform.is64bit() && !COMPRESSED_CLASS_PTRS) ? 24 : 16);
      private static final int OBJECT_SIZE = 128 * 1024;
  
      private static final int OBJECTS_TO_ALLOCATE = 100;
      private static final String BYTE_ARRAY_CLASS_NAME = new byte[0].getClass().getName();
      private static int eventCount;